The Progressive Corporation is an American diversified insurance holding company. It is, by many measures, the largest commercial auto insurer and the third-largest insurance carrier in the US. The company’s segments include Personal Lines, Commercial Lines and Property. The company was co-founded in 1937 by Jack Green and Joseph M. Lewis and is headquartered in Mayfield Village, Ohio. The company is consistently ranked in the top 100 of the Fortune 500 top American corporations by revenue. The Progressive Corporation insures, among other items, passenger vehicles, motorcycles, RVs, trailers and commercial vehicles. Its domestic insurance divisions provide home, life, pet, and additional insurance.